Colorimetric and Fluorometric Determination of Fluoride in Tetrahydrofuran and Dimethyl Sulfoxide Using a 4-Hydroxypyrene Probe.
J Anal Methods Chem
; 2024: 5566082, 2024.
Article
em En
| MEDLINE
| ID: mdl-39105132
ABSTRACT
F- ions (fluoride ions) are crucial in various chemical waste and environmental safety contexts. However, excessive fluoride exposure can pose a threat to human well-being. In this study, a simple 4-substituted pyrene derivative known as 4-hydroxypyrene (4-PyOH) was designed as a colorimetric probe for detecting F- through the formation of hydrogen bonds between F- and a hydroxyl group. The probe 4-PyOH exhibited exceptional sensitivity and selectivity towards F- ions and was successfully utilized as test strips for detecting F- ions in organic solvents. The detection limit reached an impressively low level of 3.06 × 10-7 M in the organic solvent. The recognition mechanism was confirmed through 1H NMR titration.
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MEDLINE
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En
Ano de publicação:
2024
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Article